Stop mechanism for roller-skates.



v A. 0. KONIETZKY. STOP MECHANISM FOR ROLLER SKATES.

APPLICATION FILED OCT. 28. ISIG.

Patented June l9, 1917.

v b m m w W A m .P 5 E. 1 m E x w A J ALEXANDER 0. KONIETZKY, 0E WEEHAWKEN, NEW JERSEY.

STOP MECHANISM FOR ROLLER-SKATES.

Specification of Letters Patent.

Patented-June 19, 1917.

Application filed October 28, 1916. Serial No. 128,250.

To all whom it may concern:

Be it known that I, ALEXANDER O. Ko- NIETZKY, a citizen of the Swiss Republlc,

and a resident of WVeehawken, in the coimty of Hudson and State of New Jersey, have invented a certain new and useful Improvement in Stop Mechanism for Roller-Skates, of which the following is a specification.

The present invention relates to roller skates, and has for an object to provide a stop mechanism for the same.

Another object of the present invention is to provide a releasable brake means for interlocking engagement with the rollers, either directly or indirectly, to prevent the turning of the rollers in either direction so that the skate may be held from rolling forwardly or backwardly.

It is the further aim of the invention to w provide a skate with an attachment by means of which the person wearing a pair of the skates may safely walk up and down stairs, and may climb up steep grades or hills without the exercise of undue skill, and

without liability of falling and being injured. v

The above, and other objects and advantages of this invention will be more particularly brought out in the following detailed description of the present preferred embodiment, the same being illustrated in the accompanying drawing wherein:

Figure 1 is a top plan view of a skate having a stop mechanism constructed according to the present invention applied thereto, parts of the skate frame being broken away to show the mechanism.

Fig. 2 is a side elevation of the same. Fig. 3 is a detail enlarged perspective view of one of the rear supporting brackets of the mechanism.

Fig. 4 is a longitudinal sectional view, enlarged through one of the front brackets of the mechanism.

Referring to this drawing, designates the frame of an ordinary skate which is provided at its front and rear ends with depending supporting bearings 11 in which front and rear axles 12 are journaled, the latter supporting the usual rollers 13. Fixed to the sides of the rollers 13 are toothed disks or gear wheels 14E adapted to turn with the rollers.

The rear end of the frame 10 is provided, at opposite sides of the front of the rear rollers 13, with a pair of brackets 15 in the form of metallic straps which are riveted against the underside of the frame 10, and which project outwardly therebeyond. The brackets 15 terminate at their outer ends in down-turned lugs 16 which aretransversely apertured, asshown in Fig. 3. Pivotally mounted upon the lugs 16 are looking levers l7 and 18, the levers extending rearwardly from the brackets 15 and terminating in arcuate shoes 19 provided with transversely extending teeth in their inner faces. These shoes 19 conform to the curvature of the disks ll and are adapted to seat upon the opposite side thereof, and to intermesh therewith for holding the disks and rollers from turning. Pivot bolts 20 pass through the locking lovers 1? and 1S, and through the lugs 16. Lock nuts 21 are mounted upon the inner end of each bolt 20 for binding the levers 17 and 18 frictionally against the lugs 16, and for holding them in such relation. The locking lever 17 is preferably forked at its rear end, and straddles one of the rear rollers 13. The said rear roller 13 has at its opposite sides the toothed disks let, and both ends of the forked extremity of the lever 17 may be provided with the shoes 19. This construction of lever 17 is provided for the purpose of supporting one end of a connecting rod 22 which rigidly connects the lever 18 to the lever 17 so as to efiect the simultaneous lifting and lowering of the locking levers. r

The forward end of the frame 10 is pr0- vided at its under side, rearwardly of the forward rollers 13, with a pair of transversely registering brackets 23 which are riveted or otherwise permanently secured to the frame 10. The outer ends of the brackets 23 are inclined'downwardly and are provided at their lower ends with lugs 24 upon which are pivotally connected the rear ends of forward looking levers 25 and 26. The levers 25 and 26 are provided upon their forward free ends with the locking shoes 19, and the lever 25 is preferably forked at its forward end tostraddle the forward adjacent roller, which latter has the looking members 14 secured against the opposite sides thereof. Pivot'bolts 27 connect the levers 25 and 26 to the brackets 23, and

are held frictionally thereagainst by means of the pairs of locking nuts 28. A connecting rod 29 joins the inner arm of the looking lever 25 to the locking lever 26. 'It Will be noted that the front and rear locking levers 36 and 18, respectively, are arranged against the inner sides of the front and rear rollers 13.

The front and rear locking levers are held by friction in adjusted position to support the shoes 19 in interlocking engagement with the disks 1a, or out of engagement therewith. The means for adjusting these levers into and out of engagement with the disks, comprises a pair of pivotally connected arms 30 and :31 which comprise eX- tensions at the forwariil and rear locking levers 25 and 17. The arm 30 is inclined upwardly for a short distance and is then curved forwardly in a substantially horizontal plane when in locked position. The arm :30 is provided throughout substantially its entire length with alongitudinally extending slot 32, through which is adapted to slide a pivot pin which is fixed upon and projects inwardly from the outer end of the arm 31. The extremity of the arm 30 is provided with an outwardly extending projection or pedal 3i adapted to be engaged by the opposite foot to swing the arm 30 up and down and thus move the locking levers into and out of locking position.

Fig. 2 of the accmnpanying drawing discloses the mechanism in locked position for holding the rollers froi'n turning either for- .va-rdly or rearwardly. lVhen in this position, the skates may be used as fixed sup ports, and the wearer may walk up and down stairs, and up and down inclines or steep hills, without liability of falling and being injured. lVhen the pedal 34 is depressed by the opposite foot, the lever 30 is swung down and the pivot pin 33 is forced to move in the slot 32 and swing the arm 31 downwardly. This downward movement of the arms 30 and 31 raises the adjacent locking levers 17 and 25, and by means of the connecting rods 22 and 29, raise the opposite locking levers 18 and 26, therewith, so as to release all of the shoes 19 from the disks 1% of their respective rollers. The rollers 13 are now free and the skates may be used in the ordinary manner.

The construction of this improved stop mechanism is such that all of the parts thereof may be made from strap metal, such as steel, and ordinary rivets and bolts may be employed for connecting the parts together. The device may thus be economically manufactured and applied to ordinary skate frames such as are now in use.

It is of course understood that various changes and modifications may be made in the above-specifically described construction of stop mechanism for roller skates without departing from the spirit of the invention, such changes and modifications (Jopies of this patent may be obtained for being restricted only by the scope of the following claims.

I claim:

1. In a roller skate, the combination of a frame, rollers supporting the frame, and locking means carried by the frame for engagement with the rollers to prevent the turning of the same in either direction.

2. In a roller skate, the combination of a frame, rollers supporting the frame, and intermeshing elements carried by the frame and the rollers adapted to be adjusted to hold the rollers from turning in either direction.

3. In a. roller skate, the combination of a frame, rollers supporting the frame, toothed members mounted on the rollers to turn therewith, non-rotatable toothed members a djustably mounted on the frame, and means for adjusting said nonrotatable toothed members into and out of engagement with the toothed members on the rollers.

l. In a roller skate, the combination of a frame, rollers supporting the frame, toothed members mounted on the rollers for turning therewith, non-rotatable toothed members adjustably mounted on the frame, means for adjusting said non-rotatable toothed members into and out of engagement with the toothed members on the rollers, and friction means for yieldingly holding said nonrotatable members in adjusted position.

5. In a roller skate, the combination of a frai'ne, rollers supporting the frame, toothed disks secured to the rollers adapted to turn therewith, levers pivotally mounted on the frame and having toothed shoes adapted to intermesh with said disks, and a pedal con nected to said lever for adjusting the same.

6. In a roller skate, the combination of a frame, rollers supporting the frame, a gear wheel secured to each roller and adapted to turn therewith, a locking lever pivoted on the frame for each gear wheel, means connecting said levers together to move the same simultaneously, and operating means connected to said levers for swinging the same into and out of engagement with said gear wheels.

7. In a roller skate, the combination of a frame, rollei's supporting the frame, locking members mounted on the rollers for turning therewith, interconnected levers pivotally and frictionally mounted on the frame, said levers having locking members upon their outer ends adapted for interlocking engagement with said members on the rollers, and a laterally extending pedal connected to the levers and adapted to be raised and lowered for adjusting the same.

ALEXANDER O. KONIETZKY.

five cents each, by addressing the Commissioner 01 Eatents,

Washington, 13. C. 

